F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/27, 137/4.5
F22B 37/47 (2006.01) F23N 3/04 (2006.01) F23N 5/24 (2006.01)
Patent
CA 1180959
BE IT KNOWN THAT Helmut Erb of Emmastrasse 3, 6050 Offenbach/Main and Werner Leese of Spechtstrasse 9, 6078 (Gravenbruch) Neu Isenburg, Germany, both of German nationality, having made an invention entitled: -- A COMBUSTION AUTOMATIC CONTROL SYSTEM -- the following disclosure contains a correct and full descrip- tion of the invention and the best mode known to the inventors of taking advantage of the same. ABSTRACT The invention is with respect to a fail-safe system for stopping damage to water boilers, whose thermostats are not in working order. In an automatic combustion control system of the sort having an elastic thermostat bellows element placed within an outer shell within the water space of a boiler and joined by a chain or the like with the air door for controlling the air inlet rate at some point in the connec- tion between the thermostat element and the door, there is a temperature-sensitive part, for example in the form of a plug of fusible metal or collapsing material, or in the form of a soldered join using a special fusible solder. In one form of the invention, this temperature-sen- sitive part may take the form of a ring of temperature- sensitive material placed at one end of a spring which is forced together on the temperature increasing. On damage to the thermostat element, the one end of the spring will no longer be supported so that the spring will no longer take effect and so let the air door be moved down under its own weight into the shut position. In a further form of the invention, a body of tem- perature-sensitive material is placed between a rod, acting on one end of the thermostat element and a turning head which is used for making adjustment in the desired tem- perature. In a further form of the invention, the temperature- sensitive part takes the form of a plug of temperature- sensitive material between the end of a gripping screw in a jointpiece and a turning rod acted upon by said screw. In a still further form of the invention, the temperature- sensitive part takes the form of a bimetallic wing, which is unhooked from a jointpiece on being heated to a limit tempe- rature. As part of a still further form of the invention, a guide roller for a chain joining the thermostat with the air door is fixed to the side of the boiler by way of fusible solder, this taking the form of the temperature- sensitive part.
377640
Erb Helmut
Leese Werner
Fetherstonhaugh & Co.
Samson Aktiengesellschaft
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